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ICD-10-PCS 2027 procedure code

0CMXXZ2Reattachment of Lower Tooth, All, External Approach

✓ Valid for 2027

Code unchanged since ICD-10-PCS took effect on October 1, 2015. Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data

About 0CMXXZ2

0CMXXZ2 is the ICD-10-PCS code for a reattachment procedure on the lower tooth using an external approach (qualifier: all). In ICD-10-PCS, reattachment means putting back in or on all or a portion of a separated body part to its normal location or other suitable location.

In plain terms, this corresponds to implantation of tooth, the ICD-9-CM procedure title it maps to (23.5).

For a different body part, codes include 0CMWXZ2 (upper tooth).

The same procedure with a different approach is coded 0CMX0Z2 (open).

It doesn't appear in the MS-DRG procedure index, so on its own it doesn't change the DRG assignment.

It has been valid since ICD-10-PCS took effect on October 1, 2015.

What each character means

1. Section
0Medical and Surgical
2. Body System
CMouth and Throat
3. Operation
MReattachment

Putting back in or on all or a portion of a separated body part to its normal location or other suitable location

Vascular circulation and nervous pathways may or may not be reestablished

Includes: Reattachment of hand, reattachment of avulsed kidney

4. Body Part
XLower Tooth
5. Approach
XExternal

Procedures performed directly on the skin or mucous membrane and procedures performed indirectly by the application of external force through the skin or mucous membrane

6. Device
ZNo Device
7. Qualifier
2All

Other versions of this procedure

Different body part

Different approach

Different qualifier

ICD-9-CM equivalent

Converter →
  • 23.5Implantation of toothapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about 0CMXXZ2

Is 0CMXXZ2 a valid ICD-10-PCS code for 2027?

Yes. 0CMXXZ2 is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for 0CMXXZ2?

The CMS GEMs map 0CMXXZ2 to ICD-9-CM 23.5 (Implantation of tooth).